English verb conjugation
COULD STENCIL

Regular verb: stencil - stencilled - stencilled

Affirmation

Simple form	V-ing form
I could stencil you could stencil he could stencil we could stencil you could stencil they could stencil	I could be stencilling you could be stencilling he could be stencilling we could be stencilling you could be stencilling they could be stencilling
Perfect	V-ing perfect
I could have stencilled you could have stencilled he could have stencilled we could have stencilled you could have stencilled they could have stencilled	I could have been stencilling you could have been stencilling he could have been stencilling we could have been stencilling you could have been stencilling they could have been stencilling

Negation

Simple form	V-ing form
I could not stencil you could not stencil he could not stencil we could not stencil you could not stencil they could not stencil	I could not be stencilling you could not be stencilling he could not be stencilling we could not be stencilling you could not be stencilling they could not be stencilling
Perfect	V-ing perfect
I could not have stencilled you could not have stencilled he could not have stencilled we could not have stencilled you could not have stencilled they could not have stencilled	I could not have been stencilling you could not have been stencilling he could not have been stencilling we could not have been stencilling you could not have been stencilling they could not have been stencilling

Interrogative form

Simple form	V-ing form
could I stencil? could you stencil? could he stencil? could we stencil? could you stencil? could they stencil?	could I be stencilling? could you be stencilling? could he be stencilling? could we be stencilling? could you be stencilling? could they be stencilling?
Perfect	V-ing perfect
could I have stencilled? could you have stencilled? could he have stencilled? could we have stencilled? could you have stencilled? could they have stencilled?	could I have been stencilling? could you have been stencilling? could he have been stencilling? could we have been stencilling? could you have been stencilling? could they have been stencilling?

Interro-negative form

Simple form	V-ing form
could I not stencil? could you not stencil? could he not stencil? could we not stencil? could you not stencil? could they not stencil?	could I not be stencilling? could you not be stencilling? could he not be stencilling? could we not be stencilling? could you not be stencilling? could they not be stencilling?
Perfect	V-ing perfect
could I not have stencilled? could you not have stencilled? could he not have stencilled? could we not have stencilled? could you not have stencilled? could they not have stencilled?	could I not have been stencilling? could you not have been stencilling? could he not have been stencilling? could we not have been stencilling? could you not have been stencilling? could they not have been stencilling?